{"json_modified": "2016-09-17T14:22:13.467942", "uuid": "a91f57e7-660c-44ce-b2da-01b9aa4b07b3", "title": "runtime.onMessageExternal", "url": "/en-US/docs/Mozilla/Add-ons/WebExtensions/API/runtime/onMessageExternal", "tags": ["runtime", "API", "Non-Standard", "Reference", "Event", "Non-standard", "Extensions", "Add-ons", "WebExtensions", "onMessageExternal", "add-ons"], "translations": [], "modified": "2016-09-17T14:22:13", "label": "runtime.onMessageExternal", "localization_tags": [], "locale": "en-US", "id": 172145, "last_edit": "2016-09-17T11:50:09", "summary": "Fired when a message is received from another extension/app. Cannot be used in a content script.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "addListener_syntax", "title": "addListener syntax"}, {"id": "Parameters", "title": "Parameters"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "Examples", "title": "Examples"}], "slug": "Mozilla/Add-ons/WebExtensions/API/runtime/onMessageExternal", "review_tags": []}